Gents,
I think I'm going to scrap the second car for now and put some love into the zhp. The numbers don't add up on buying a gas saver to justify it's price, it would take me 5 years to break even on gas savings vs the zhp. I have needed headlights for 2 years because of the really poor light output on my zkws. I've avoided getting them fixed because of the high cost and it really hasn't been a problem with my 5 minute commute to work. Essentially I cannot drive at night without my fogs on, and even then I have pretty bad visibility with the short range of the fogs. I just contacted Lightwerkz and they quoted me $425 + return shipping for a retrofit w/fxr projectors. This is cheaper than I thought it would be. For the record, I have a 2004 330i with factory bixenon. I'm going to send my lights in as soon as my house closes and I move the car there. I'm looking forward to having working headlights, I will update with the results but it might be a couple weeks.